AT&T, you still suck.
AT&T, you still suck.
I carry both an iPhone 3gs and a Blackberry around most of the time (I'm currently justin.tv's iPhone developer). I find the iPhone pretty much useless around San Francisco because of AT&T's abysmal network coverage - I tend to just not bother and use the Blackberry instead, even though it has a worse web browsing experience (at least it always works! I haven't found a place yet that doesn't have good Sprint coverage).
Having said that, we have three generations of iPhones in our family, and when we go to remote regions everybody has to use my Motorola. I think that if Apple switched to Verizon, everybody would realize it's the phone and not the network.
Having said that, every iPhone has gotten closer and I'm hoping the 4th is a ringer, 'cuz I'd like to get one.
I've always been impressed with RIM's phones, though; they have impressive transceivers (I say that anecdotally; I don't know any specs).
I don't think a change to the antenna would affect how it behaves in the same room as its base station, anyway.
After years of ATT's awful network, my first few minutes on Sprint gave me nerd chills: the same nerd chills I got when I was 15 and surfed the internet with broadband for the first time.
The first few days of ownership I was actually struggling to wear my battery down to <5% so I could do a full charge cycle.
Note: I have a "Rev B." Evo.
My biggest complaint is that 4G service indoors is awful (close to non-existent unless you live in a house made of paper), and outdoors it is very latent even with a strong signal ( 200+ms)
I'm not sure which revision I have (got it at Google IO)